北师大版四年级数学下册小数乘法专项练习题122.docx

北师大版四年级数学下册小数乘法专项练习题122.docx

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北师大版四年级数学下册小数乘法专项练习题122

三、计算。

2.2×4.3＋0.90.41＋1.9×50.71＋2.2＋5.29

0.28×4.2＋0.28×5.812.5×0.35×0.4

7×0.7＋1×0.5180－4.5－35.5

一、口算。

0.2×5＝8×0.2＝0.006×1000＝34.6÷1000＝

1.41×10＝20×0.02＝0.9×4＝0.4×700＝

二、列竖式计算。

0.97×0.040.63×2.40.6×0.380.59×4.82

4.9×0.40.22×1.90.4×0.910.58×9.39

三、计算。

4.2×0.87＋0.085.8＋2.4×59.9＋0.11＋20.1

0.34×0.59＋0.34×0.410.25×2.1×0.08

0.63×0.06－0.13×0.033400－8.7－21.3

一、口算。

0.8×4＝6×0.6＝0.04×10＝0.291÷100＝

0.899×1000＝0.08×0.4＝0.8×600＝0.6×0.09＝

二、列竖式计算。

5.6×0.070.32×0.160.12×2.60.56×1.79

8.6×0.71.9×0.910.92×0.880.61×33.1

三、计算。

0.66×0.67＋0.072.1＋29×20.81＋9＋0.19

9.9×0.67＋9.9×0.332.5×0.81×0.02

0.8×0.05＋0.2×0.02630－3.3－26.7

一、口算。

0.5×6＝6×0.9＝0.8×10＝0.033÷10＝

1.43×10＝9×0.02＝0.08×0.7＝2×7＝

二、列竖式计算。

0.61×0.20.67×8.90.22×2.64×43.8

0.58×0.30.86×0.690.27×0.522×7.96

三、计算。

32×44＋0.110.49＋0.91×60.45＋5.9＋7.55

0.45×30＋0.45×701.25×0.11×8

8.7×0.5－2.2×0.2540－2－58

一、口算。

0.4×5＝6×0.4＝0.008×1000＝5.26÷1000＝

39×1000＝70×0.04＝0.01×0.3＝0.16×0.07＝

二、列竖式计算。

0.87×0.97.8×0.830.84×7.10.42×4.7

3.5×0.090.89×9.40.2×0.590.47×65.9

三、计算。

0.27×0.8＋0.060.4＋26×0.80.54＋6.3＋3.46

4.7×76＋4.7×240.5×2.7×0.4

0.83×0.05－0.25×0.025400－3.4－16.6

一、口算。

0.6×2＝3×0.8＝0.02×100＝0.24÷1000＝

9.18×100＝90×0.6＝0.5×6＝0.18×0.05＝

二、列竖式计算。

0.62×0.90.1×0.470.72×50.69×7.73

6.7×0.57.3×0.273×4.70.45×17.1

三、计算。

7.3×63＋0.054.8＋30×96＋3.1＋4

3.6×0.81＋3.6×0.190.5×45×0.08

0.92×0.05－0.36×0.043200－1.1－8.9

一、口算。

0.3×7＝8×0.2＝0.009×10＝9.3÷100＝

73.7×100＝90×0.02＝0.7×2＝0.11×80＝

二、列竖式计算。

0.78×0.039.2×2.50.77×7.99×25.5

0.49×0.048.7×6.40.15×0.80.47×6.04

三、计算。

0.48×0.95＋0.19.3＋0.11×0.59.6＋6.3＋50.4

0.28×0.24＋0.28×0.76125×0.94×0.08

7×0.9＋1×0.5300－0.98－5.02

一、口算。

0.5×2＝7×0.9＝0.08×100＝68.6÷1000＝

76.2×1000＝0.06×0.09＝0.03×6＝0.03×0.7＝

二、列竖式计算。

8.7×0.085.8×2.70.54×20.92×5.24

0.74×0.088.2×0.890.23×8.16.2×45.4

三、计算。

4.4×5.9＋1.20.37＋12×0.22.7＋0.97＋67.3

9.6×59＋9.6×411.25×0.46×0.8

8.6×0.9＋1.4×0.56200－1.7－48.3

一、口算。

0.9×5＝3×0.6＝0.07×10＝20.2÷100＝

90.2×10＝0.2×0.04＝0.3×90＝2×0.4＝

二、列竖式计算。

4.3×0.093.8×0.890.64×2.21.9×3.13

0.67×0.25.7×0.352.4×2.40.11×66.7

三、计算。

0.08×91＋0.110.95＋6.6×80.25＋0.85＋2.75

4.9×0.18＋4.9×0.820.05×0.39×0.08

0.67×0.05＋0.49×0.04890－0.59－4.41

一、口算。

0.3×9＝6×0.5＝0.08×10＝3.59÷1000＝

8.16×100＝0.3×0.05＝0.8×0.04＝0.9×0.9＝

二、列竖式计算。

5.1×0.080.44×0.364.9×0.279.7×9.31

0.15×0.092.6×0.212.2×0.911.3×1.33

三、计算。

0.9×5.2＋0.70.25＋33×61.2＋0.91＋18.8

3.1×0.24＋3.1×0.762.5×5×0.8

7.7×0.7＋1.7×0.3830－6.3－33.7

一、口算。

0.2×6＝3×0.5＝0.005×10＝0.165÷10＝

0.068×1000＝0.04×0.02＝0.6×0.02＝0.1×0.07＝

二、列竖式计算。

4.7×0.040.11×2.30.16×5.52.4×57.2

1.5×0.038.6×0.420.67×6.80.68×78.5

三、计算。

9.5×50＋0.090.19＋15×93.3＋0.95＋36.7

0.63×0.39＋0.63×0.6112.5×8.5×4

9.2×0.6＋1.4×0.25900－4.4－45.6

一、口算。

0.5×2＝7×0.4＝0.5×1000＝75.2÷1000＝

2.85×1000＝50×0.08＝0.9×3＝0.09×0.04＝

二、列竖式计算。

0.81×0.020.96×0.196.3×0.330.35×96.7

0.42×0.20.33×0.69.4×1.13.3×5.14

三、计算。

6.5×0.22＋10.41＋5.2×60.14＋0.96＋8.86

0.65×27＋0.65×7312.5×2.6×0.02

0.76×0.06－0.34×0.038500－1.3－88.7

一、口算。

0.1×6＝4×0.9＝0.3×100＝0.446÷10＝

97.2×10＝9×0.7＝0.04×0.8＝0.7×400＝

二、列竖式计算。

8.5×0.60.33×0.43.7×0.440.73×28

6.8×0.050.82×7.90.23×1.95.5×2.31

三、计算。

0.13×32＋1.17.7＋66×60.68＋0.4＋1.32

5.5×69＋5.5×3125×0.65×0.8

0.71×0.08－0.1×0.057700－6－14